Specification - MI-HEL - Helicopter Port Fuel Interceptor MIFAB Series MI-HEL __ helicopter port fuel interceptor constructed from high strength 1/4" (6) plate steel, ASTM-A242, outlet vent connection, internal vent connection, gasketed access covers fastened with stainless steel bolts, 2" (50) fuel drain connection, 1" (25) fresh water supply connection with gate valve, back flow preventor, automatic water level float valve, external sight glass water level indicator with drain cocks, 2" (50) interceptor drain plugs, channel support rails and body corner lifting lugs. Interceptor shall be coated with Neutra-Rust on the inside and a Class A rated and approved fire retardant intumescent coating.